Rational & Radical Exp. and Eq./Rational & Irr. Numbers

Which set of numbers contain only rational numbers?

• $\left\{\pi,\ 2.23,\ -4\right\}$

• $\left\{\sqrt{5},\ \frac{3}{4},\ \sqrt{4}\right\}$

• $\left\{\sqrt{36},\ 3.2\ x\ 10^2,\ \sqrt{20}\right\}$

• $\left\{\sqrt{49},\ 4.5\ x\ 10^{-2},\ -10\right\}$

In what category does  $\frac{6}{11}$   belong ?

• Integer

• Natural Number

• Rational Number

• Irrational Number

Which of the following numbers is irrational?

• √8
• ¾
• 2
• -1.325

Tags

CCSS.8.NS.A.1

Which of the following numbers is rational?

• √8
• √16
• √50
• √75

Tags

CCSS.8.NS.A.1

Which result will be rational?

• 3.16 + π

• 2.6̅3 − √5

• √8 ⋅ √2

• √5 ⋅ √4

Tags

CCSS.7.NS.A.1D

Which result will be irrational?

• √4 ⋅ √49

• √2 ⋅ √10

• √2⋅ √ 8

• √16 ⋅ √25

 $Solve:\ \sqrt{x-4}=7$  

• x = 49

• x = 53

• x = 45

• x = 18

 $Solve:\ -8\sqrt{x-5}=-16$  

• x = 2

• x = 4

• x = 7

• x = 9

 $Solve:\ \sqrt{2x-6}=\sqrt{5x-15}$  

• x = -6

• x = 3

• x = -3

• x =  $\pm5$  

Tags

CCSS.HSA.REI.A.2

 $Solve:\ n=\sqrt{-30+11n}$ 

Remember to check for extraneous solutions. 

• {-3}

• {6}

• {5,6}

• {5}

Tags

CCSS.HSA.REI.A.2